STAMPED METAL PART WITH AN IMPACT ENERGY ABSORPTION AND DISSIPATION AND/OR TRANSMISSION FUNCTION, AND METHOD FOR MAKING SAME

摘要

The present invention relates to a hot-stamped part at least partially made of a hardened material and having at least one localised boss (20, 23) designed to provide the desired impact energy absorption and dissipation and/or transmission function, characterised in that said boss (20) comprises at least one predetermined aperture (26) enabling plastic deformation of the boss when it is impacted. The apertures can be cut out before stamping. The invention is particularly useful for making structural bodywork members for motor vehicles.